Universal square



A ril 21] 1925. 534757 m APRILE UNIVERSAL SQUARE r Patented Apr. 21, 1925.

UNITED sur ns PATENT OFFICE.

. mais 419mm, or cmcmnrx, H10.

Application filed Ans-nul: 5, 1921. Serial 1R2. 490,120.

o aZZ whom it may comem:

Be it lmown that I, Loms .PRILE, a, citi zen of the United St tes, -residin in the city of Cincinnati, in t e coht o Hamil I ton and State of Ohio, have inventd certain new and useful Improvemcnzs in Universel Squares, of which the following is a speci' fication.

M invention relates to universel mares 1 emp oyed' for markin and laying oii oints; and designs on irreg ar surfaces, and more particularly on Comice work, copings, px}guldings, ornamental'stone work and the 1 18 Heretofore considerable trouble has been experienced fin layihg of mouldings, corner Work and the like having irregularly formed surfaces and outlines, for the reason that no satisfactory means have been devised for: accurately drawing fines in a given plane so tlmt these cornices:or monldings xnaybe afterwards cut andaccurately joined together. Mv invention has for its object the provi- V sien of a devine adapted for readily marking.and laying of marble and Wood work, and more articularly work such as cornices, moul ings, and those having irregul'ar surfaces. My invention consists of .a basehaing a guiding blade universlly mounted titr6on,

so as to beadjustable in any dixction; inrther, in 'adjustable marking means.

w adaptcd to be guided by said guiding blade; further, in positioning and olamping meeris for the guiding blade; and frthr, in means for locating and guiding 'the base. My invention fnrther consiste inche parts and combination and arrangement fl1ereof, as he'rein described and claimed.. In the drnwing: y

Fig. 1 is a perspective viewof my improved device showing the mariner of chuploying the same in laying oi a; moulding. j

Fig. 2 is a plan view of thedevice;

Fig. 3 is a. side elevat1on -of the snme pnrtly broken away;

v may be employed.

Fig. 4 is a. vertical cross section of part of my im proved device taken on the line {1 -4 of l 1g. 2 with guiding blade broken away;

"Fig. 5 is a similar view taken on the line i5 of Fig. 2;

Fig; 6 is a plan view of my improved devise showing the anxiliary base attached, and having the blade removed;

Fig. 7 13 a side elevztion of the same partly broken away; and

Fig. 8 is a perspective view of the auxiliary base. 1

In -the embodiment of my invention as illustrated a base 10 has 1otatably mounted thereon a post 11 as by a. trunnion 12 jour: nald in a mie 13 qf the base. The post has a fiange 14 thereon adapted to rest on the 66 base 10, and is received in circuler rabbet 15 form'ed in a retaining ring 16 secured to thebse by screws 17. The ring 16 has an inWardly projecting linge 18 thereOn received in a. circlar rabbt 19 on the flange '14 on the post. A clamp screw 25 lit threaded connection 26 With theinwardly projccting flange 18, and is adapted toexert pressure aga.inst the fiange 14 on the post and serves to clamp tl xe same in adjusted 15 position.

The base further has a depending apron 27 thereon which serves as 9. guide for 10- cating the main base withreference to an edge of the material upon which the device The post has a slot 30 theren in which a guidingblade 31 is clmped us by a clamp screw 32 passing through a hole 33in portion 34 of the post, and having threaded connection 35 with portion 36 of thepost. 'The blade preferably comprises an arm 37 hziving a depending plate 38 thereon. The ann 37 has a slot 39 theiein extendin in the direction of its greatest lengt through which the clamp screw 32 passes when -the'guidingblade has its arm cIamped in the post. I p1efer to' form 9. hole 40 in the plate 38 of the guiding blade, so as the outer end of the 50 to cause the same to be ca able of hein clamped in the post 11 with t l ie arm exten ing outwards. In order that it will be possible to scribe a line in a given plane over any ir1e ular surface I provide a scribing device 45 a apted to be guided by the guiding blade 31. The scribing device comprises a pair of pivotally connected arms 46 pivoted as by a. pivot 47. An arc piece 48 secured to one of the arms as by a pin 49, is slidable in a slot 50 in the other of the arms and clamped in adjusted position by a thumb screw 51. Crie of the arms has a bent portion 52 thereon, to which 9. guide piece 53 is secured as b rivets 54. The other of the arms has a bloc 55 thereon, having a hole 56 therein in which a marking point 57 is adjustably secured as by a clamp screw 58,

Means are provided whereby the plane of the guiding blade may be centered with relation to c1rcular projections or corners on the surface upon.which it is desired tolay ofi' lines. Thus an auxiliary base 60 has'a miter 61 therein, formed by Wings 62 and 63. A clearance slot' 64 at the base of the miter provides clearance for sharp corners on the work. The auxiliary base is of substantially the same thickness as the height of the depending apron 27. The auxiliary base is adapted to be secured below the main base and having its side edges coinciding with the side edges of the base 10. The auxiliary base bas pins 65 thereon which are frictionally received in holes 66 in the base 10. The ins 65 and the holes 66 are 's0 10- cated witli reference tothe post 11 that a medial line passing through the corner of the miter will pass through the axial center of the post and, also cause the miter 61 t0 project clear of the base 10.

The base 10and the depending apron 27 thereon have openings'67 therein so .that a line may be scribed to the corner of the work, it being sometimes necessary to meet another line previously scribed on adjacent surfaces; In use we will assume that it is desired to scribe an angular line on the irregular surface 68 of et section of moulding 69, ashown in Fig. 1. The. guiding blade 31 is adjusted to an au le correspondmg to the angle of eut it is deswed to make, by rotating the post 11 and, the fiange 14 on the base 10 and clam ing the same in adjusted position by the'c mp screw 25. The base 10 is located in position by contacting the edge of the work with the depending apron 27. The guiding blade 31 is clamped in adjusted position in the 'slot 30 by the clamp screw 32 in such manner asto cause the depending plate 38 to extend downwardly and over the irregular surface of the moulding', as shown in Fig. .1. The flange'14 may have a mark 90 thereon adapted to coact with marks 91 on the retaining ring 16. The marks 91 may be spaced radially at regular intervals to form an index of angles in degrees of a circle. Figure designations 92 may be placed at the marks 91 to indicate the number of degrees the said marks are spaced from a given point for instance a zero point such as indicated at 93. The marks 91 therefore serve to indicate the angle in degrees at which the guiding blade may be set with respect to a predetermined plane. The marking device 45 may now be employed to scribe a lme by placing the face of the uide piece 53 into entirecontact with the gui ing blade.

The marking point 57 is placed in contact with the surface of the moulding through.

one of the openings 67, the pivotally connected anus 46 being previously adjusted and clamped in position through the medium 01 the arc piece 48 and clamp screw 51. The dasired line may now be scribed by causing the marking point to follow the irregular surface of the moulding while simultaneously hold1n the guide piece 53 in contact With the gui ing blade. The marking point:

in this manner i's caused to follow in a given plane the intricate and irregular surface of the work.

. The gulding.blade being slidably and pivotally mounted on the base may be adjusted and clamped in any desired position t0 scribe fines on any. irre face. The guiding bla 9 may be adjusted to suit any particular outline of the surface p}on which it is desired to scribe a linee auxiliar base is removed in the operation previously described as it is only necessary to employ the-same -when scribing limes on surfaces of work having no straight ed s.

lould it become necessary to scribe a line at any given angle radially or tangentially to a cnclar projection located on a sniooth surface, the auxiliary base iSplaced in a position, 'as shown in Figs. 6 and 7. The base is brought forward so as to cause the wings '62 and 63 of the miter 61 to cons This lOcates tact the circular I proiection. the base 10 in the desired position. The

*guiding blade or arm is then adjusted and the line scribed as hereinbefore explained. What I claim as new and desire to serrure by Letters Patent is:

1. In a uniVrsalsquare, a base having a positioning strai'ght edge provided with clearance ogenifigs or notches therein, a guiding bla e, means mounting said blada, marking means adapted to be guider? by said blade and having a markmg point adapted to scribeq line to the edge 'of the work in said clearance openings or notches, substantially as set forth and for the pur poses specified.

2. In a universal square, a base.a verticui post pivotally mounted adjacent said base, a plate pivotally mounted on said post, 3.

lar or plane sur-.

pair of pivotally connootod nrms, a marking; point adjnstable longitndinaily on one of said arms and & guide fixed on the other of said arme and adapted to engage said plate and slide thereon.

In a nniversnl square, a base, un auxiliar base dotachably mounted on said first naxned base and having a notch adapted to provide eiearanoe on sharp corners of tln3 work, a guiding blade on said iirst named base and marking means guidable by said gniding hl:zdo whereby a line may in; scribed on irregnlar snria ces in a given plane paraliel to said gniding blade and a distance thereirozn.

4-. In a, nniversal square, a base imving a hole therein and one edge oi said base coing ntraight, a post, 'a trnnnion on said post rotatable in said hoie, a ciroular finng on said post ab0ve said trnnnion adapted to have bearing onsaid baise, a circular ring secnred on snid base over said flnnge, said ring having a rabbet thrrein in which sa1d flange sencs for rotatably secnring the fiange to tire base, a clamp screw for olamping said fiango to said ring, clamp screws foi cla1npingsaid ring to said base, said post having a -slot therein at right angles to tho plane of rotation thereof, a guiding blade s.lidably and pivotally adjnstable in said slot, :1 clamp screw for ciamping said blnue in adjustod position and adjnstable mark ing means adapted to be gnided by sa.d gniding binde.

5. En sa. oniversal square, a base having 3 hole theroin and one end of said base bemg straight, a post, &J.runnion on said post rotntaole in said hole, a circuiar fiange on said post above said trnnnion and adapted to have bearing on said base., a circnlar ring secnred on said base over s;id flange, said ring having rabbet thereih in which said flange seats for rotatably securing tlio fiange adjacent the base, a clamp screw in said ring adapted to be received against saisi flnnge, whoreby said post is adaptd toise clnmped in ndjnsted position relativo.to said ring, said post having a slot therein at right angles to the plane of rotation-thoraof, a guiding blade slidably and pivot-ally adjnstable in said siot and comprising on 21mn, 21 depending portion integrally formed therewith and said arm having a slot charoin, said post having a hole thorethrongh transverseiy of said slot, a clamp ScreW passing through said last named hole and the slot in said 2mn and having threadod connection with said post and marking nans adapted to be guded by s:d gniding blade.

6. In a nniversnl square, a base having one edge straight whereby said base is ca pal: 6 of being positioned with relation to the edgo of the work, a post rotatably mounte,d n; sa1dlbas&,-a fiange on Said post and having an indicating mark thereon, a circular ring secured to said base and having angle index marks thereQn and having a rabbot therein in which said flange is rotatnbly retained, a clamp screw extending throngh and thre'aded to said ring whereby' said flnnge and post. are clam ed in adjnsed position relative to sai ring and base, said post having a slot therein at ri ht angles to the piano of rotation thereo a gn1ding blade slidably and pivotally mounted in said slot, 2 clamp screw in said post adapted to engage said blade whereby said blade is clamped in adjnsted position, an

adjnstabie marking device adapted to ha guided by said blade and comprising a pair of pivotally connected arme, a segment on one of said arms the other of said arma having a slot therein in whicl.said segment is slidable, a clamp screw for clamping said segment in said slot whereoy said arms are held in adjusted position relative to each other, a marking oint on one of snid arma and a guiding dise on the other of said arrns adapted to coaot with Said gniding blade.

7. In a universal square, a base having angularity indicating means mounted thereon and lmving a straight edge, an anxiliary base dotachably mounted on Said first named on said auxiliary base frictionally rece1vnble in -said hoies and so locted as to hold said anxiliary base on said first named base, a guiding blade connected With said first named base and adjnstable to any position about an axis at right angles thereto whereby said angularitv indicating means fixed to said first na1ned Base is adapted to indicate the angulnrity of said blade relative to said straight edge and marking mans guidable by said guiding blade whereby a hne mny be scribed on irregular surfaces in a plane parailel to said gniding blada.

8. In a nniversal square, a base having a liole therein, one edge of said base being stmight, a. post having a trunnion rotatable in said hole, a flange on said ost above snid trunnion adapted to have earing on Said base, a ring secured on sai d bais about said flange, and having a rabbet therein in which said flange is rotatably retained,

means whereby said post and flange are clamped in adjusted position, there being indicating marks on said ring, and a coactingz indicating mark on said flange, said pont having a slotthereinat right an les to the plane of rotation thereof, a gui mg blade rotatubly adjustable in said slot and comprising an arm having aslottherein, and a depending plate integrally formed therewith, means for holding said bl.de l

in adjusted positions relative to said 0st, and a markin; means adapted to be gu1ded by said guiding means.

9. In a universal Square, a guiding plate, a pair of-pivotally connected arms, a segment secured to one of said arms, the other of said arms having a slot therein in Which said segment is slidable, means whereby said segment is clamped in said slot to hold said arms in adjusted' position, au uide. plilze se- 1 cured to one of said a.rms a a ted t6 slidably contact said guiding bla e, a beuring in the other of said arms, a marking point longitudinally adjustable in said bearing,

and means for holding said marking point 15 in edj usted position.

LOUIS APRILE. 

